BSC 1005 Lecture Notes - Lecture 19: Bacteria, Plasmid, Hiv
Document Summary
Bacteriophage, viroids, prions, microorganisms, prokaryotes, archaea, eubacteria, endospore, binary fission, conjugation, plasmid, pathogens. Viruses are smaller than bacteria, attack every known living organism. Protein coat, nucleic acid core (genetic material) dna and rna. Virus cannot reproduce itself without host cells (host-specific) nonliving. Bacteriophage: a group of viruses that infect bacterial cells. Bio - chapter 19 page 1: penetration, replication and synthesis, assembly, release. Leads to the death of the host cell. Viral dna is incorporated in to the host dna. Cold, certain cancers, wart, hiv (human immunodeficiency virus), mumps, measles, flu (influenza) Human papilloma virus hpv - cervical cancer hepatitis. Single-celled organisms that are too small to be seen without a microscope. Ribosomes in cytoplasm some may have semi-rigid cell wall. Plasmid - small circle of extra dna with only few genes and self replicating. E s cherichia coli - both useful and harmful. S almonella - food poisoning, transmitted through uncooked meat.
